JP2013185381A - Structure of building outer wall, and boundary part finishing member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel technique for improving aseismatic performance using an exterior face member.SOLUTION: In the structure of a building outer wall, plastered walls and panel-like load bearing walls are arranged to construct the outer wall of a building. Each load bearing wall is installed at a site where the load bearing wall can be fastened to a skeleton member, to improve the aseismatic performance of the building with the load bearing wall. The building is an existing building, and each plastered wall is an existing wall. The load bearing wall is installed in a region formed by removing the existing wall from a specified site, or in a region on the upper side of the existing wall at the specified site, to improve the aseismatic performance of the building with the load bearing wall.

Description

  The present invention relates to a structure of a building outer wall for the purpose of improving the seismic performance of a building.

  As countermeasures against earthquakes in buildings such as houses, it is known that the earthquake resistance performance of the entire building is achieved by the earthquake resistance performance exhibited by the exterior surface material. For example, in Patent Document 1, the earthquake resistance is simplified from the outer wall side of the building. A seismic outer wall (bearing wall) of a wooden house that can be renovated into a structure and a construction method thereof are disclosed.

  In Patent Document 1, for the building of the existing outer wall made of mortar, by installing the earthquake-resistant outer wall in the range up to the middle of the height direction of the first floor part, so as to cover the outer peripheral part of the building excluding the opening, A configuration in which an earthquake resistant outer wall is installed is disclosed.

JP 2008-231765 A

  The demand for earthquake resistance is increasing year by year, and the demand for securing and improving earthquake resistance performance using exterior face materials is also increasing. In addition, there are many potential implications, and the construction method is expected to meet the diverse and diverse demands of owners.

  By the way, as can be seen from Patent Document 1, it is proposed that the use of the exterior face material can improve the seismic performance not only on the entire outer wall of the building but also on the first floor portion. .

  However, even if it is the structure disclosed by patent document 1, since it is supposed that the substantially whole range of the part which comprises the wall of the first floor is covered with an exterior surface material, the cost of an exterior surface material itself, and construction cost are carried out. There is a concern that this cost problem may cause a situation where the owner has to give up the construction.

  Such a situation can occur both at the time of renovation (renovation) and at the time of new construction. Especially in the demand for renovation, there are many owners who want to improve seismic performance at a low cost and in a short period of time. It is anticipated that there is an urgent need to meet such client requests.

  In view of the above problems, an object of the present invention is to propose a new technique for improving seismic performance using an exterior face material.

  In addition, as another problem, when there is a boundary portion between the exterior face material and the coated wall portion such as mortar, a problem of the boundary portion is caused. That is, finishing such as ensuring water-stopping at the boundary and securing designability is required, but it is necessary to ensure weather resistance and ease of construction for this finishing.

  Therefore, as another object, the present invention proposes a new technique for the finish form capable of ensuring weather resistance and ease of construction at the boundary between the exterior surface material and the coated wall portion such as mortar. The purpose is to do.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, as described in claim 1,
It is a structure of the building outer wall that constitutes the outer wall of the building by arranging a painted wall and a panel-shaped bearing wall,
A load bearing wall is installed at a portion where the load bearing wall can be fastened to the frame member, and the earthquake resistant performance of the building is improved by the load bearing wall.

Moreover, as described in claim 2,
The building is an existing building, the painted wall is an existing wall, and a load-bearing wall is installed in the area formed by removing the existing wall in a specific part, or in the area above the existing wall in a specific part. The earthquake-resistant performance of buildings will be improved by bearing walls.

Moreover, as described in claim 3,
A boundary finishing member is provided at the boundary K between the existing wall and the load bearing wall,
The boundary surface finishing member hides the surface of the existing wall and the surface of the bearing wall.

Moreover, as described in claim 4,
The boundary finishing member is
A base member that is fixed to the finding surface of the housing member;
A first cover material having a cover surface portion facing the finding surface of the bearing wall;
And a second cover material having a cover surface portion facing the finding surface of the existing wall.

Moreover, as described in claim 5,
A packing is sandwiched between the first cover material and the second cover material, and the cover surface portion of the second cover material is arranged at a position that is on the outdoor side of the existing wall, depending on the thickness of the packing. And

Moreover, as described in claim 6,
A boundary finishing member that is housed in a boundary portion between a paint wall that is adjacent in the lateral direction and a panel-shaped bearing wall,
A base member that is fixed to the finding surface of the housing member;
A first cover material having a cover surface portion facing the finding surface of the bearing wall;
A second cover material having a cover surface portion facing the finding surface of the existing wall,
The boundary finishing member is used.

Moreover, as described in claim 7,
A packing is sandwiched between the first cover material and the second cover material, and the cover surface portion of the second cover material is arranged at a position that is on the outdoor side of the existing wall, depending on the thickness of the packing. And

  As effects of the present invention, the following effects can be obtained.

That is, in the invention according to claim 1,
The installation range of the load-bearing wall can be selected arbitrarily, and the cost of the load-bearing wall itself and the construction cost can be kept low, and the optimal measures to improve seismic performance according to the owner's budget are proposed and implemented. It becomes possible. Moreover, an exterior design can be comprised by the wall from which the kind of a bearing wall and a coating wall differ, and it also becomes possible to comprise the design which has design property.

In the invention according to claim 2,
When there is a demand to improve seismic performance at a low cost and in a short period of time, especially in renovation demand, the installation range of the bearing wall can be arbitrarily selected, and the cost of the bearing wall itself and the construction cost Therefore, it is possible to propose and implement optimal measures for improving seismic performance according to the owner's budget and delivery date. Moreover, an exterior design can be comprised by the wall from which the kind of a bearing wall and a coating wall differ, and it also becomes possible to comprise the design which has design property.

In the invention according to claim 3,
With the first cover material and the second cover material, the finish of the end face of the load bearing wall at the boundary part and the finish of the end face of the existing wall can be obscured, respectively, and the design at the boundary part can be ensured. Moreover, since an advanced finishing operation becomes unnecessary, the ease of construction can be secured.

Moreover, as described in claim 4,
When a filler is used at the boundary, the filler is covered with the first cover material and the second cover material, so that deterioration of the filler due to ultraviolet rays can be suppressed, ensuring weather resistance, and consequently the boundary. It is possible to ensure water stoppage at the part.

In the invention according to claim 5,
When the protruding dimension W from the pillar of the existing wall is different for each construction site, it can be dealt with by changing the packing.

In the invention according to claim 6,
With the first cover material and the second cover material, the finish of the end face of the load bearing wall at the boundary part and the finish of the end face of the existing wall can be obscured, respectively, and the design at the boundary part can be ensured. Moreover, since an advanced finishing operation becomes unnecessary, the ease of construction can be secured. In addition, when a filler is used in the boundary portion, the filler is covered with the first cover material and the second cover material, so that deterioration of the filler due to ultraviolet rays is suppressed, ensuring weather resistance, and consequently In addition, it is possible to ensure water stoppage at the boundary portion.

In the invention according to claim 7,
When the projecting dimension of the existing wall from the frame member differs for each construction site, it can be dealt with by changing the packing.

It is the perspective view which showed typically the wooden building provided with the bearing wall which is one Example of this invention. It is a horizontal sectional view shown about composition of a boundary part of an existing wall and a load bearing wall. It is sectional drawing shown about the shape of the structural member of a boundary part finishing member.

  FIG. 1 is a perspective view schematically showing a wooden building 1 having load bearing walls 10, 10 according to an embodiment of the present invention. The building 1 is a two-story house. A window 3 is provided on the first floor, and a window 4 is provided on the second floor.

  Moreover, the wall which forms an external appearance has the existing walls 2 and 2 and the load-bearing walls 10 and 10 which are not repaired. The exterior of the existing walls 2 and 2 is configured by, for example, a coated wall such as mortar, and the load-bearing walls 10 and 10 are configured by ceramic industry outer wall panels.

  In this embodiment, the load-bearing walls 10 and 10 are newly installed in the parts constituting the corners 6 and 6 in the exterior of the building 1, and the existing walls 2 and 2 are used as they are in the other parts. As a result, seismic retrofit will be implemented. The load-bearing walls 10 and 10 are fastened to the housing members (columns 7 and 7) disposed at the protruding corners 6 and 6.

  Further, by providing the bearing walls 10, 10 only at the corners 6, 6, the design surrounding the existing walls 2, 2 with the bearing walls 10, 10 in the exterior of the building 1, or the yield strength A design having design properties can be configured, such as a design that constitutes a column in which the walls 10 and 10 pass from the first floor to the second floor.

  In addition to the form in which the load-bearing walls 10 and 10 are provided in the protruding corner parts 6 and 6, for example, there is also a form in which the load-bearing walls 10 and 10 are provided so as to pass through the center part 8 in the width direction of the entire exterior wall surface from the first floor to the second floor. Conceivable.

  Furthermore, the load-bearing wall 10 may be composed of a ceramic-type outer wall panel or a metal outer wall panel, and a single load-bearing wall 10 is temporarily installed as compared with a coated wall such as mortar. The seismic performance can be improved only by this. For this reason, it is possible to improve and secure the seismic performance by providing a single bearing wall 10 in a spot at an arbitrary site.

  In particular, in the case of seismic renovation of an existing building, in the case where a structural member to which the bearing wall 10 is fixed, that is, a column, a stud, a beam, a trunk edge, etc. is effectively used as it is, the installation of the bearing wall 10 is performed. The part to be done will be limited.

  For example, in the example of FIG. 1, there are columns 7 and 7 (frame members) that are provided in the range from the base portion to the roof bottom portion at the protruding corner portions 6 and 6 and that constitute the structural frame of the building. Since the load bearing walls 10 and 10 can be installed on the columns 7 and 7, the load bearing walls 10 and 10 are installed at the protruding corners 6 and 6.

  As described above, it is also conceivable that an arbitrary portion is appropriately selected from the portions where the load bearing wall 10 can be installed, and the load bearing wall 10 is disposed at the selected portion. It should be noted that the bearing wall 10 can be fastened to a structural housing such as a pillar, a stud, a beam, and a trunk edge by using a well-known fixing bracket, screw, screw or the like.

  As described above, according to the present invention, the painted wall (existing walls 2 and 2) and the panel-shaped load-bearing wall 10 are arranged to constitute the outer wall of the building 1, and the load-bearing wall 10 is a casing. The bearing wall 10 is installed in a portion that can be fastened to the members (columns 7 and 7), and the building's outer wall structure is designed to improve the seismic performance of the building by the bearing wall 10.

  According to this, the installation range of the load-bearing wall 10 can be arbitrarily selected, the cost of the load-bearing wall 10 itself and the construction cost can be kept low, and the optimum seismic performance according to the owner's budget. It is possible to propose and implement improvement measures. Moreover, an external design can be comprised by the wall from which the kind of bearing wall 10 and a coating wall (existing wall 2 and 2) differ, and it also becomes possible to comprise the design which has design property.

  Furthermore, the building 1 is an existing building, and the painted walls are the existing walls 2 and 2, a region formed by removing the existing walls 2 and 2 in a specific part, or the existing walls 2 and 2 in a specific part. In the upper region, the load bearing walls 10 and 10 are installed to improve the earthquake resistance of the building by the load bearing walls 10 and 10.

  For example, at the time of renovation, it is conceivable to remove the existing walls 2 and 2 at a specific part, form a place where no painted wall exists, and install the load bearing wall 10 at this place.

  According to this, especially in the demand for renovation, when there is a demand to improve the seismic performance at a low cost and in a short period of time, the installation range of the bearing wall 10 can be arbitrarily selected. This makes it possible to keep the cost of construction and the construction cost low, and it is possible to propose and implement the optimal measures to improve seismic performance according to the owner's budget and delivery date. Moreover, an external design can be comprised by the wall from which the kind of bearing wall 10 and a coating wall (existing wall 2 and 2) differ, and it also becomes possible to comprise the design which has design property.

  In addition, although it does not specifically limit about the specific specification of the bearing wall 10, For example, it can be considered as the following various specifications.

<Specification 1: Ceramics outer wall panel>
Width dimension: 3030mm
Vertical dimension: 455mm
Thickness: 18mm

<Specification 2: Ceramics outer wall panel>
Width dimension: 3030mm
Vertical dimension: 455mm
Thickness: 15mm

  Next, as shown in FIG. 1, a technique related to finishing at the boundary portion K between the existing wall 2 and the bearing wall 10 will be described. FIG. 2 is a horizontal sectional view at the boundary K, in which the longitudinal end surface 2a of the existing wall 2 (the end surface 31a of the mortar 31) and the longitudinal end surface 10a of the load bearing wall 10 are arranged to face each other. A state in which the boundary finishing member 20 is disposed is shown.

  As shown in FIG. 2, the existing wall 2 is provided in the region on the right side of the finding surface 7 a of the column 7. The existing wall 2 is formed by applying a mortar 31 to the base material 30 to form a painted wall. This existing wall 2 was provided so as to cover all the finding surface 7a of the column 7, but the portion covering the left side portion in the figure of the finding surface 7a of the column 7 was removed at the time of earthquake-proof repair. Therefore, the bearing wall 10 is newly disposed at the removed site.

  The load-bearing wall 10 is provided with respect to the region on the left side of the finding surface 7 a of the column 7. The load bearing wall 10 is arranged by removing a part of the existing wall 2 for the purpose of improving seismic performance, and is fixed to the column 7 by using a well-known fixing bracket, screw, screw or the like. Attached. The bearing wall 10 may be composed of a ceramic outer wall panel or a metal outer wall panel.

  And the boundary part K formed between the existing wall 2 and the load-bearing wall 10 is finished by installing the boundary finishing member 20 between the existing wall 2 and the load-bearing wall 10.

  2 and 3, the boundary finishing member 20 includes a base member 22 fixed to the finding surface 7a of the column 7 and a cover surface portion 24a facing the finding surface 10b of the load bearing wall 10. And a second cover material 26 having a cover surface portion 26a facing the finding surface of the existing wall 2 (finding surface 31b of the mortar 31).

  The base member 22 can be composed of, for example, a long aluminum extrusion molding material or a resin molding material. The base member 22 includes a base portion 22a that is abutted against the finding surface 7a of the column 7 in a cross-sectional view, and vertical wall portions 22b and 22c that protrude in one direction at intervals from the base portion 22a. And an intermediate wall portion 22d configured to connect both the vertical wall portions 22b and 22c.

  One vertical wall portion 22b protrudes from one end portion in the width direction of the base portion 22a, and a substantially right corner portion 22e is formed by the vertical wall portion 22b and the base portion 22a. The corner portion 22e is attached to the corner portion 30b formed between the finding surface 7a of the column 7 and the end surface 30a of the base material 30 of the existing wall 2, thereby positioning the base member 22 with respect to the column 7. Is called.

  The vertical wall portion 22 b, the end surface 31 a of the mortar 31, and the finding surface 30 c of the base material 30 constitute a substantially U-shaped groove-like space 34. The groove-like space 34 is appropriately filled with a filler 36 made of a mortar material or the like, and the space between the vertical wall portion 22b and the end surface 31a of the mortar 31 is filled with the filler 36 without a gap.

  Further, when the filler 36 is filled, the vertical wall portion 22b functions as a wall, so that the filling operation of the filler 36 can be easily performed. From this point of view, it is preferable that the front end portion of the vertical wall portion 22 b is configured to protrude outward from the surface of the mortar 31.

  The other vertical wall portion 22c is provided so as to protrude from a midway portion in the width direction of the base portion 22a. A positioning piece 22f projects in the middle of the depth direction of the vertical wall 22c in the direction opposite to the other vertical wall 22b.

  The positioning piece portion 22f, the end face 10a of the load bearing wall 10, and the vertical wall portion 22c can form a substantially U-shaped groove-like space 35. The groove-like space 35 is appropriately filled with a filler 37 made of a sealing material (caulking material) or the like, and the space between the vertical wall portion 22c and the end face 10a of the load bearing wall 10 is filled with no gap.

  Further, when filling the filler 37, the vertical wall portion 22c functions as a wall, so that the filling operation of the filler 37 can be easily performed. From this point of view, it is preferable that the front end portion of the vertical wall portion 22 c is configured to protrude outward from the surface of the load bearing wall 10.

  Further, in the base portion 22a of the base member 22, the left portion in the drawing functions as a fixing surface 22g with respect to the finding surface 7a of the column 7. A waterproof sheet 40 is sandwiched between the fixed surface 22 g and the back surface of the load bearing wall 10. The fixing surface 22g is fastened to the finding surface 7a of the column 7 with a screw (not shown) or the like.

  In addition, with respect to the base member 22 fastened to the column 7, the load bearing wall 10 is installed so that the end face 10 a of the load bearing wall 10 abuts the positioning piece 22 f, whereby the load bearing strength against the base member 22 is increased. The wall 10 can be positioned.

  Further, by positioning the bearing wall 10 in this way, the width of the groove-like space 35 can be defined to a constant value depending on the dimension of the positioning piece portion 22f, and the groove-like space filled with the filler 37 is filled. 35 can always be set to a constant value, and a constant water stop function by the filler 37 can be secured.

  Next, the 1st cover material 24 can be comprised with a long aluminum extrusion molding material and a resin molding material, for example. The first cover member 24 includes an abutting wall portion 24b that abuts against the intermediate wall portion 22d of the base member 22, and a vertical wall portion 24c that protrudes from one side end of the abutting wall portion 24b in the width direction. And a cover surface portion 24a for projecting from the end of the vertical wall portion 24c opposite to the contact wall portion 24b toward the bearing wall 10 side.

  The abutting wall portion 24b and the vertical wall portion 24c of the first cover member 24 are accommodated in an accommodation space 22h surrounded by the vertical wall portions 22b and 22c and the intermediate wall portion 22d of the base member 22. An end 24m opposite to the vertical wall 24c of the contact wall 24b of the first cover member 24 is between the protrusion 22k protruding from the vertical wall 22b of the base member 22 and the intermediate wall 22d. It is inserted into the recessed groove portion 22m formed in. Further, the vertical wall portion 24 c of the first cover member 24 is formed with a recessed groove portion 24 d, and this recessed groove portion 24 d is inserted into a protruding portion 22 j that protrudes from the vertical wall portion 22 c of the base member 22. . As described above, the first cover member 24 is positioned with respect to the base member 22 by inserting a predetermined portion of the first cover member 24 into a predetermined position of the base member 22.

  The cover surface portion 24a of the first cover material 24 has its side end portion 24e positioned on the positioning piece portion 22f of the base member 22 so that the filler 37 filled between the base member 22 and the load bearing wall 10 can be covered. The overlap margin W1 is ensured between the load bearing wall 10 and the cover surface portion 24a. For example, the overlap allowance W1 may be 5 mm to 20 mm.

  Further, the side end 24e of the first cover member 24 is preferably bent so as to approach the finding surface 10b side of the bearing wall 10. Thereby, the clearance gap S1 formed between the 1st cover material 24 and the load-bearing wall 10 becomes narrow, and it can make the filler 37 difficult to see from the outside.

  Next, the 2nd cover material 26 can be comprised with a long aluminum extrusion molding material and a resin molding material, for example. The second cover member 26 protrudes from an opposing wall portion 26b that faces the abutting wall portion 24b of the first cover member 24 via the packing material 28, and one end portion in the width direction of the opposing wall portion 26b. A vertical wall portion 26c, and a cover surface portion 26a for projecting toward the existing wall 2 (mortar 31) side from the end of the vertical wall portion 26c opposite to the opposing wall portion 26b. The

  The opposing wall portion 26b and the vertical wall portion 26c of the second cover member 26 are accommodated in an accommodation space 22h surrounded by the vertical wall portions 22b and 22c and the intermediate wall portion 22d of the base member 22.

  The cover surface portion 26 a of the second cover material 26 has a side end portion 26 e exceeding the end surface 31 a of the mortar 31 so that the filler 36 filled between the base member 22 and the mortar 31 can be covered. The overlap margin W2 can be ensured with 31. The overlap allowance W2 is considered to be 5 mm to 20 mm, for example.

  Further, the side end portion 26 e of the second cover member 26 is preferably bent so as to approach the finding surface 31 b side of the mortar 31. Thereby, the clearance gap S2 formed between the 2nd cover material 26 and the mortar 31 becomes narrow, and it can make the filler 36 difficult to see from the outside.

  Further, a packing material 28 is preferably sandwiched between the contact wall portion 24 b of the first cover material 24 and the facing wall portion 26 b of the second cover material 26. With the thickness 28w of the packing material 28, the cover surface portion 26a of the second cover material 26 can be arranged at a position that is on the outdoor side of the mortar 31 with respect to the finding surface 31b.

  The configuration in which the packing material 28 is interposed between the first cover material 24 and the second cover material 26 is an effective configuration particularly when the load bearing wall 10 is installed by reforming. This is because the protruding dimension W3 from the column 7 of the existing wall 2 (finding surface 31b of the mortar 31) is assumed to be different for each construction site, and from this, a plurality of types of packings 28 having different thicknesses 28w are prepared. It is conceivable to form the packing 28 with a sponge member whose thickness 28w is changed by elastic deformation.

  The positional relationship between the cover surface portion 24a of the first cover member 24 and the finding surface 10a of the load bearing wall 10 is set by the position of the intermediate wall portion 22d of the base member 22, but the wall of the load bearing wall 10 is not limited. Since the thickness is set in advance, the dimensions of the intermediate wall portion 22d of the base member 22 and the vertical wall portion 24c of the first cover member 24 may be designed according to the setting of the wall thickness of the load bearing wall 10. .

  In FIG. 2, the opposing wall portion 26 b of the second cover member 26, the packing 28, the abutting wall portion 24 b of the first cover member 24, the intermediate wall portion 22 d of the base member 22, and the base portion 22 of the base member 22. So that the second cover member 26, the packing 28, and the first cover member 24 can be fastened to the pillar 7 by screwing a screw (not shown) into the pillar 7 so as to penetrate through the pillar 7. It has become.

As described above, in the present embodiment, the boundary used in the structure of the building outer wall and accommodated in the boundary portion K between the painted wall (existing walls 2 and 2) adjacent in the horizontal direction and the panel-shaped bearing wall 10. Part finishing member 20,
The boundary finishing member 20 is
A base member 22 fixed to the surface 7a of the column 7;
A first cover member 24 having a cover surface portion 24a facing the finding surface 10b of the bearing wall 10,
And a second cover member 26 having a cover surface portion 26a facing the finding surface of the existing wall 2 (finding surface 31b of the mortar 31).

  With this configuration, the first cover member 24 and the second cover member 26 cover the finish of the end face 10a of the load bearing wall 10 at the boundary K and the finish of the end face of the existing wall 2 (end face 31a of the mortar 31), respectively. And design properties at the boundary K can be ensured. Moreover, since an advanced finishing operation becomes unnecessary, the ease of construction can be secured. Further, when the fillers 36 and 37 are used in the boundary portion K, the fillers 36 and 37 are covered with the first cover material 24 and the second cover material 26 so as to cover the fillers 36 and 37 using ultraviolet rays. Deterioration of the water is suppressed, and weather resistance can be ensured, and hence water stoppage at the boundary K can be ensured.

  Further, a packing 28 is sandwiched between the first cover material 24 and the second cover material 26, and the second cover is positioned at a position that is more on the outdoor side than the locating surface 31 b of the mortar 31 due to the thickness 28 w of the packing 28. The cover surface portion 26a of the material 26 is arranged.

  With this configuration, when the protruding dimension W3 from the column 7 of the existing wall 2 (finding surface 31b of the mortar 31) is different for each construction site, it can be dealt with by changing the thickness 28w of the packing 28.

The present invention can be implemented as described above.
That is, as shown in FIGS. 1 to 3, the boundary finishing member 20 is provided at the boundary K between the existing walls 2, 2 and the load bearing walls 10, 10, and the existing wall is separated by the boundary finishing member 20. It is assumed that the two and two finding surfaces 10b and the finding surfaces 10b of the bearing walls 10 and 10 are hidden.

  Thereby, the finish of the end surface 10a of the load bearing wall 10 at the boundary portion K and the finish of the end surface of the existing wall 2 (end surface 31a of the mortar 31) are respectively covered by the first cover material 24 and the second cover material 26. Thus, the design property at the boundary portion K can be ensured. Moreover, since an advanced finishing operation becomes unnecessary, the ease of construction can be secured.

  The boundary finishing member 20 includes a base member 22 that is fixed to the finding surface 7a of the housing member (columns 7 and 7) and a cover surface portion 24a that faces the finding surface 10b of the bearing wall 10. It is set as the boundary part finishing member comprised including the one cover material 24 and the 2nd cover material 26 which has the cover surface part 26a which opposes the finding surface 2a of the existing wall 2. As shown in FIG.

  Thereby, when the fillers 36 and 37 are used in the boundary part K, the fillers 36 and 37 are covered with the first cover material 24 and the second cover material 26, so The deterioration of 37 can be suppressed, and the weather resistance can be ensured, and hence the water stoppage at the boundary K can be ensured.

  Further, a packing 28 is sandwiched between the first cover material 24 and the second cover material 26, and the second cover is positioned at a position on the outdoor side of the existing wall 31b due to the thickness 28w of the packing 28. The cover surface portion 26a of the material 26 is arranged.

  Thereby, when the protruding dimension W3 from the column 7 of the existing wall 2 (finding surface 31b of the mortar 31) is different for each construction site, it can be dealt with by changing the thickness 28w of the packing 28.

  Moreover, it is the boundary part finishing member 20 accommodated in the boundary part K between the coating wall (existing walls 2 and 2) adjacent to a horizontal direction, and the panel-shaped bearing wall 10, Comprising: The boundary part finishing member 20 is a housing. A base member 22 fixed to the finding surface 7a of the members (columns 7 and 7), a first cover material 24 having a cover surface portion 24a facing the finding surface 10b of the load bearing wall 10, and the existing wall 2 It is set as the boundary part finishing member comprised including the 2nd cover material 26 which has the cover surface part 26a which opposes the finding surface 2a.

  Thereby, the finish of the end surface 10a of the load bearing wall 10 at the boundary portion K and the finish of the end surface of the existing wall 2 (end surface 31a of the mortar 31) are respectively covered by the first cover material 24 and the second cover material 26. Thus, the design property at the boundary portion K can be ensured. Moreover, since an advanced finishing operation becomes unnecessary, the ease of construction can be secured. Further, when the fillers 36 and 37 are used in the boundary portion K, the fillers 36 and 37 are covered with the first cover material 24 and the second cover material 26 so as to cover the fillers 36 and 37 using ultraviolet rays. Deterioration of the water is suppressed, and weather resistance can be ensured, and hence water stoppage at the boundary K can be ensured.

  Further, a packing 28 is sandwiched between the first cover material 24 and the second cover material 26, and the second cover is positioned at a position on the outdoor side of the existing wall 31b due to the thickness 28w of the packing 28. The cover surface portion 26a of the material 26 is arranged.

  Thereby, when the protruding dimension W3 from the column 7 of the existing wall 2 (finding surface 31b of the mortar 31) is different for each construction site, it can be dealt with by changing the thickness 28w of the packing 28.

  The configuration of the present invention can be applied as a means for improving and securing the seismic performance at the time of new construction, in addition to being implemented as a seismic retrofit by reform.

DESCRIPTION OF SYMBOLS 1 Building 2 Existing wall 2a End surface 6 Projection corner 7 Column 10 Bearing wall 20 Boundary part finishing member 22 Base member 24 First cover material 26 Second cover material 28 Packing material 30 Base material 31 Mortar 36 Filling material 37 Filling material K Boundary Part

Claims (7)

It is a structure of the building outer wall that constitutes the outer wall of the building by arranging a painted wall and a panel-shaped bearing wall,
The load-bearing wall is installed at a portion where the load-bearing wall can be fastened to the housing member, and the earthquake-resistant performance of the building is improved by the load-bearing wall.
The structure of the outer wall of the building. The building is an existing building, the painted wall is an existing wall, and the proof stress is applied to an area formed by removing the existing wall at a specific part, or an area above the existing wall at a specific part. Install a wall to improve the seismic performance of the building with the bearing wall.
The structure of the building outer wall according to claim 1. A boundary finishing member is provided at the boundary between the existing wall and the load bearing wall,
The boundary surface finishing member conceals the surface of the existing wall and the surface of the bearing wall.
The structure of the outer wall of a building according to claim 1 or 2, characterized in that: The boundary finishing member is:
A base member that is fixed to the finding surface of the housing member;
A first cover material having a cover surface portion facing the finding surface of the bearing wall;
A second cover material having a cover surface portion facing the finding surface of the existing wall,
The structure of a building outer wall according to claim 3, wherein the structure is a boundary finishing member. A packing is sandwiched between the first cover material and the second cover material, and depending on the thickness of the packing, the position of the second cover material is at a position that is on the outdoor side of the finding surface of the existing wall. Let's arrange the cover surface part,
The structure of the outer wall of a building according to claim 4. A boundary finishing member that is housed in a boundary portion between a paint wall that is adjacent in the lateral direction and a panel-shaped bearing wall,
A base member that is fixed to the finding surface of the housing member;
A first cover material having a cover surface portion facing the finding surface of the bearing wall;
A second cover material having a cover surface portion facing the finding surface of the existing wall,
Boundary finish member. A packing is sandwiched between the first cover material and the second cover material, and depending on the thickness of the packing, the position of the second cover material is at a position that is on the outdoor side of the finding surface of the existing wall. Let's arrange the cover surface part,
The boundary part finishing member according to claim 6.

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